Praveen pr4v33n

I hereby claim:

To claim this, I am signing this object:

I found the autovivification functionality of it pretty cool. If only I could have a parent reference...

Obviously this was not going to be a one-line tree. But that wasn't the goal

A simple variant:

from collections import defaultdict

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

	// gviztablelog.js
	// https://github.com/pr4v33n
	// Adds a `gvizTableLog` function to window object.
	// https://developers.google.com/chart/interactive/docs/reference#DataTable

	(function() {
	window.gvizTableLog = function(dataTable) {
	var rowIndex = 0, tableData = [], columnIndex = 0, columnLabels = [];
	while (columnIndex < dataTable.getNumberOfColumns()) {
	columnLabels.push(dataTable.getColumnLabel(columnIndex) \|\|

	//stateChangeHandler will fire when the state has changed, i.e. data is received back
	// This is non-blocking (asynchronous)
	function stateChangeHandler() {
	//readyState of 4 or 'complete' represents that data has been returned
	if (xmlHttp.readyState == 4 \|\| xmlHttp.readyState == 'complete') {
	//Gather the results from the callback
	var str = xmlHttp.responseText;
	if (str != "") {
	//document.getElementById('msgPanel').innerHTML += str;
	var msgs = str.split('#');

	"""
	Challenge: http://beust.com/weblog/2012/02/16/a-new-coding-challenge-2/
	Author: Praveen Kumar T

	The Test:
	--------
	The probability distribution of the number of fixed points of a
	uniformly distributed random permutation approaches a Poisson
	distribution with expected value 1 as n grows.
	he first n moments of this distribution are exactly those of

	09:41:38 PM) h0x5f3759df: Hi, is there any limit on batch write for db.put() ?
	(09:42:41 PM) h0x5f3759df: if i have to put 100 entities, Should i put them in batches of 10 using db.put() or can i do db.put() on all 100 in a single go?
	(09:48:36 PM) mbw: you should be able to do all at once
	(09:54:38 PM) dw: h0x5f3759df: the limit is on the size of the underlying RPC iirc, which is (i think?) is 10mb
	(09:59:07 PM) Sonderblade left the room (quit: Quit: L?mnar).
	(09:59:37 PM) mbw: the sdk will split it up for you
	(10:00:03 PM) mbw: it didnt used to do that,but will now
	(10:00:35 PM) proppy: 1mb
	(10:00:45 PM) proppy: for db.put() is the limit
	(10:00:49 PM) mbw: 1mb per entity, not rpc

	class Foo(db.Model):
	bar = db.ListProperty(required=True)

	If i have 5 entities of kind "Foo"

	Entity1.bar = ["abc"]
	Entity2.bar = ["def"]
	Entity3.bar = ["ghi"]
	Entity4.bar = ["klm", "nop"]
	Entity5.bar = ["qrs", "tuv", "wxy"]